221010201220012 has 12 divisors (see below), whose sum is σ = 394065358779456. Its totient is φ = 108420098711600.

The previous prime is 221010201220009. The next prime is 221010201220013. The reversal of 221010201220012 is 210022102010122.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (221010201220013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 521250474364 + ... + 521250474787.

It is an arithmetic number, because the mean of its divisors is an integer number (32838779898288).

Almost surely, 2^{221010201220012} is an apocalyptic number.

It is an amenable number.

221010201220012 is a deficient number, since it is larger than the sum of its proper divisors (173055157559444).

221010201220012 is a wasteful number, since it uses less digits than its factorization.

221010201220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042500949208 (or 1042500949206 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 221010201220012 its reverse (210022102010122), we get a palindrome (431032303230134).

The spelling of 221010201220012 in words is "two hundred twenty-one trillion, ten billion, two hundred one million, two hundred twenty thousand, twelve".